The Legend of Korra book 4 trailer is on Nick.com and on YouTube.
http://www.nick.com/videos/clip/korra-book-4-trailer-89471257.html
https://www.youtube.com/watch?v=NCEFMY4TWGw
No, Book 4: Balance is the last season of The Legend of Korra.
The season finale of the Legend of Korra, Book One: Air, premiered on June 23, 2012.
The season finale of the Legend of Korra, Book Two: Spirits, premiered on November 22, 2013.
The Legend of Korra: Book 2 - Spirits will begin airing on Nickelodeon in the United States in September 2013.
The season premiere of Book 4: Balance of The Legend of Korra will premiere on October 3, 2014.
No, Book 4: Balance is the last season of The Legend of Korra.
The season finale of the Legend of Korra, Book Three: Change, premiered on August 22, 2014.
The season finale of the Legend of Korra, Book One: Air, premiered on June 23, 2012.
The season finale of the Legend of Korra, Book Two: Spirits, premiered on November 22, 2013.
The Legend of Korra: Book 2 - Spirits will begin airing on Nickelodeon in the United States in September 2013.
The season premiere of Book 4: Balance of The Legend of Korra will premiere on October 3, 2014.
The third season of The Legend of Korra (Book Three: Change) premieres on June 27, 2014.
Sadly, two years
Season 4 of The Legend of Korra is called Book 4: Balance, and the season premiere is on October 3, 2014.
Season 2 of The Legend of Korra was called Book 2: Spirits and the release date was September 13, 2013.
Season 1 of The Legend of Korra was called Book 1: Air and the season premiere was on April 14, 2012.
Well as I know and find out is The new seriese the legend of Korra will Have Two (2) books only and the book 1(Air) Have 12 chapters and and book 2 ( don't know what will be about) will have 16 chapters and I don't know if they will change Their Mind or Not cuz the director is pretty creepy first he make his mind to make book 4 but after that he changed agin...,,,, we miss Ang :(